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US 2009/0151058 A1Published application
Protective enclosure
AssigneeGore Enterprise Holdings, Inc.
InventorsBrian Farnworth, Edward C. Gunzel, Gregory D. Culler
Life of this patent
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Abstract
The present invention describes chemical protective enclosure comprising a waterproof outer surface comprising an impermeable portion and an air diffusive portion, and further comprising a chemically adsorptive material substantially adjacent the air diffusive portion, wherein there is sufficient diffusion of breathable air into the chemical protective enclosure to sustain life.
Claims34
A chemical protective enclosure comprising
- a) a waterproof outer surface comprising
- i. an impermeable barrier portion that is impermeable to gas and liquids, and
- ii. an air diffusive portion having an airflow of less than about 5 L/m2/s at 100 Pascals and
- b) a chemical protective material adjacent the air diffusive portion, wherein the chemical protective enclosure comprises greater than about 0.3 L/min/occupant oxygen diffusion through the air diffusive portion.
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A chemical protective enclosure comprising
- a) a waterproof outer surface comprising
- i. an impermeable barrier portion that is impermeable to gas and liquids and
- ii. an air diffusive portion comprising a microporous porous polytetrafluoroethylene layer, the air diffusive portion having an airflow of less than about 5 L/m2/s at 100 Pascals, and
- b) a chemical protective material comprising activated carbon positioned adjacent the microporous porous polytetrafluoroethylene layer and opposite the outer surface,
- wherein air diffusing through the microporous porous polytetrafluoroethylene layer passes through the chemical protective material before entering the chemical protective enclosure, and
- wherein greater than about 0.3 L/min/occupant oxygen diffuses through the air diffusive portion and into the chemical protective enclosure.
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Dependencies are inferred from the claim text.